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FM31256
fm31256读写源程序，(fm31256 literacy program. 0000000000000000000000000000000000000000 )
- 2007-06-08 08:09:29下载
- 积分：1
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temperatureahumidity-alarm
温湿度报警系统，基于VB的小程序，和DHT11相关。(Temperature and humidity alarm system, VB-based applets, and DHT11 related.)
- 2014-06-08 15:41:40下载
- 积分：1
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cheng
滤波器广泛应用于数字信号处理、通信、自动控制领域,但设计可变宽频带有源滤波器则比较困难。利用单片机控制参数可编程的双二阶通用开关电容有源滤波器,精确设置有源滤波器的中心频率f，品质因数Q及有源滤波器的工作方式。本系统主要分为两个部分:即程控滤波器和程控放大器。程控放大器电压增益为40dB，通过单片机控制DA进行分压，可精确实现要求的10dB步进，误差小于0.5 ，通带为100Hz-500KHz，输入电压峰－峰值范围为10mV，在输入范围内无明显失真。由MAX264为核心的滤波器，可设置为高通、低通滤波器。通过单片机直接给出控制频率，使-3dB截止频率在1KHz-20KHz内可调，步进1KHz，误差小于1 。整个系统以52单片机为控制核心，电路简单，性能稳定，且具有较高精度，滤波参数调节通过单片机控制，较为方便。(Filters are widely used in digital signal processing, communications, automatic control area, but the design variable wideband active filter is more difficult. Control parameters using single-chip programmable universal switched-capacitor biquad active filter, active filter accurately set the center frequency f, quality factor Q and the active filter works. The system is mainly divided into two parts: the program-controlled filters and programmable amplifiers. Programmable amplifier voltage gain of 40dB, the DA through the partial pressure of single-chip control, can accurately achieve the required 10dB step, the error is less than 0.5 , passband to 100Hz-500KHz, input voltage peak- the range of 10mV, the input range no significant distortion. By the MAX264 as the core of filter can be set to high pass, low pass filter. Given directly by the microcontroller controls the frequency, the-3dB cutoff frequency at 1KHz-20KHz adjustable, step 1KHz, error is less than 1 . The entire system for)
- 2011-07-17 16:23:27下载
- 积分：1
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car-tracking
使用51单片机以及红外管，这段代码实现小车沿着黑色线路准确行走，但是要自己修改到合适的左右轮速度才能完美转弯。(By using 51 MCU and IR LED light tube, the code can achieve the goal of moving according to the black line. But you need revise the speed data of the left and right tire so that the car can turn aroud perfectly. )
- 2015-08-26 13:00:00下载
- 积分：1
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RS485-basic-communication-principles
RS485通信的源代码，可进行两个系统之间信号的传递，介绍其编程规则(RS485 communications source code, can be passed between the two signal systems, introduces its programming rules)
- 2016-04-13 21:00:22下载
- 积分：1
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pulse-width-measurement
该程序主要用来测量信号的脉冲宽度，具有较好的稳定性和精度。(The program is mainly used for the measurement of pulse width signal,and has good stability and accuracy.
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- 2015-01-15 08:09:27下载
- 积分：1
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STM8_DevelopmentEnvironmentSmallestProjectSystem
说明： STM8 开发环境、最小项目工程、最小系统 二、STM8S的最小硬件系统
STM8的最小硬件系统包含下列部分：
1、电源
2、时钟管理
3、复位管理
4、调试接口(SWIM)
(Development EnvironmentSmallestProjectSystem)
- 2010-04-17 15:09:50下载
- 积分：1
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refresh
F5 refresh programing tool
- 2014-03-31 08:56:52下载
- 积分：1
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ALIENTEK-MINISTM32-17
ALIENTEK MINISTM32 实验17 SPI实验(The ALIENTEK MINISTM32 experiment 17 SPI experiments)
- 2013-04-20 16:34:03下载
- 积分：1
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51-circuit-for-proteus
郭天祥教学单片计配套电路图，可用proteus打开，比完成相应的实验(It is the circuit for the using of SCM of Guo Tianxiang training. )
- 2012-09-25 19:05:53下载
- 积分：1
